fix FP_ILOGB0 and FP_ILOGBNAN definitions to be valid for use in #if

[musl] / include / math.h

diff --git a/include/math.h b/include/math.h
index 6ac91da..fea3468 100644 (file)
--- a/include/math.h
+++ b/include/math.h
@@ -27,7 +27,7 @@ extern "C" {
 #define MATH_ERREXCEPT 2
 #define math_errhandling 2
 
-#define FP_ILOGBNAN (-1-(int)(((unsigned)-1)>>1))
+#define FP_ILOGBNAN (-1-0x7fffffff)
 #define FP_ILOGB0 FP_ILOGBNAN
 
 #define FP_NAN       0